From 7e434a09a5570ff836a133fbf404dd7976aea197 Mon Sep 17 00:00:00 2001
From: obdev <obdev@oceanbase.com>
Date: Thu, 16 Mar 2023 03:11:01 +0000
Subject: [PATCH] Fix remove longops failed

---
 src/rootserver/ddl_task/ob_ddl_scheduler.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/rootserver/ddl_task/ob_ddl_scheduler.cpp b/src/rootserver/ddl_task/ob_ddl_scheduler.cpp
index 601d7c2974..e121032fe2 100644
--- a/src/rootserver/ddl_task/ob_ddl_scheduler.cpp
+++ b/src/rootserver/ddl_task/ob_ddl_scheduler.cpp
@@ -1937,8 +1937,10 @@ int ObDDLScheduler::remove_task_from_longops_mgr(ObDDLTask *ddl_task)
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid arguments", K(ret), KP(ddl_task));
   } else if (ddl_task->support_longops_monitoring()) {
-    if (OB_FAIL(longops_mgr.unregister_longops(ddl_task->get_longops_stat()))) {
-      LOG_WARN("failed to unregister longops", K(ret));
+    if (OB_NOT_NULL(ddl_task->get_longops_stat())) {
+      if (OB_FAIL(longops_mgr.unregister_longops(ddl_task->get_longops_stat()))) {
+        LOG_WARN("failed to unregister longops", K(ret));
+      }
     }
   }
   return ret;